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Finding the Third Proportional to 6,310 and 13,889

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Solution

The third proportional to 6,310 and 13,889 is: 30,571.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,310 : 13,889 = 13,889 : x
  2. Step 2: Convert to fraction form
    6,310/13,889 = 13,889/x
  3. Step 3: Cross multiply
    6,310x = 13,889 × 13,889
  4. Step 4: Simplify right side
    6,310x = 192,904,321
  5. Step 5: Solve for x
    x = 192,904,321/6,310
  6. Step 6: Final answer
    x = 30,571.21

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.